On initial fill, WITH FULL SYN OIL, just to where the oil is visible in the glass. After test ride and a 5 minute rest, it usually crawls up to between 1/4 and 1/2 up the glass.During oil change, with soaking the filter and rocking, we bill out between 1.4 and 1.7qt,. of FULL SYN. OIL. Each bike takes a slightly different amount.